Weather on October 25 at Isle Royale
Isle Royale National Park
Based on 50 years of data from Houghton, MI
Planning Your Visit
October 25th in Isle Royale National Park (via Houghton, MI) typically brings chilly fall weather, with average highs around 48°F and lows near 35°F. Over 50 years of records, the warmest October 25th was in 1989 (65°F average), while the coldest was 1976 (28°F) — a 37°F range across recorded history. Precipitation has occurred on 58% of recorded October 25th dates, with snow falling 12% of the time (heaviest snowfall: 2.3"). The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
Planning for October 25th in Isle Royale? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 55°F | 29°F | 0" | -- |
| 2024 | 52°F | 45°F | 0.23" | -- |
| 2023 | 48°F | 43°F | 0" | -- |
| 2022 | 54°F | 41°F | 0.28" | -- |
| 2021 | 47°F | 37°F | 0.03" | -- |
| 2020 | 34°F | 29°F | 0.08" | -- |
| 2019 | 49°F | 29°F | 0" | -- |
| 2018 | 53°F | 33°F | 0.13" | -- |
| 2017 | 40°F | 29°F | 0" | -- |
| 2016 | 46°F | 28°F | 0" | -- |
| 2015 | 45°F | 24°F | 0.1" | -- |
| 2014 | 60°F | 46°F | 0" | -- |
| 2013 | 47°F | 30°F | 0.25" | -- |
| 2012 | 53°F | 38°F | 0.48" | -- |
| 2011 | 43°F | 28°F | 0" | -- |
| 2010 | 58°F | 48°F | 0.1" | -- |
| 2009 | 40°F | 28°F | 0.25" | -- |
| 2008 | 47°F | 40°F | 0.2" | -- |
| 2007 | 55°F | 28°F | 0" | -- |
| 2006 | 42°F | 22°F | 0" | -- |
| 2005 | 42°F | 31°F | 0" | -- |
| 2004 | 50°F | 34°F | 0" | -- |
| 2003 | 48°F | 33°F | 0.15" | -- |
| 2002 | 40°F | 23°F | 0.18" | 0" |
| 2001 | 46°F | 34°F | 1.45" | 0" |
| 2000 | 70°F | 46°F | 0" | 0" |
| 1999 | 59°F | 33°F | 0" | 0" |
| 1998 | 61°F | 46°F | 0" | 0" |
| 1997 | 34°F | 30°F | 0.03" | 0.1" |
| 1996 | 51°F | 36°F | 0.05" | 0" |
| 1995 | 56°F | 33°F | 0.03" | 0" |
| 1994 | 40°F | 36°F | 0.74" | 0" |
| 1993 | 52°F | 42°F | 0.05" | 0" |
| 1992 | 54°F | 33°F | 0" | 0" |
| 1991 | 36°F | 34°F | 0.13" | 0" |
| 1990 | 41°F | 32°F | 0.03" | 0" |
| 1989 | 77°F | 54°F | 0" | 0" |
| 1988 | 33°F | 32°F | 0.58" | 2.3" |
| 1983 | 45°F | 36°F | 0.05" | 0" |
| 1981 | 35°F | 30°F | 0.13" | 0.5" |
| 1980 | 36°F | 31°F | 0.46" | 1.8" |
| 1979 | 32°F | 28°F | 0.03" | 0.1" |
| 1978 | 54°F | 41°F | 0" | 0" |
| 1977 | 60°F | 49°F | 0" | 0" |
| 1976 | 31°F | 26°F | 0.05" | 1.2" |
| 1975 | 49°F | 37°F | 0.05" | 0" |
| 1974 | 46°F | 37°F | 0" | 0" |
| 1973 | 63°F | 45°F | 0.33" | 0" |
| 1972 | 47°F | 27°F | 0" | 0" |
| 1971 | 63°F | 52°F | 0" | 0" |